In speaking with my sifu, he said that there were two groups of the Ten Tigers. Wong Fei Hung belonged to the second group. As far as Hak Fu Mun and it's Iron Wire set and obvious Lama influence. It is attributed to the interaction of the Ten Tigrs. Like was mentioned they were not of the same time line, but it is said that Wong Kei Yin and Soo Hak Fu (Su So) were known friends and exchanged a great deal.
The problem with Shaolin is that everyone has a story of how their art originated from Shaolin, and that we know is not true. Although Soo Hak Fu created Hak Fu Mun Shaolin had already had some black tiger sets. Soo Hak Fu was taught these sets and other arts being exchanged within Shaolin at the time, and created his own style. While Soo Hak Fu is best known for his black tiger he was also known for being very well hated and feared. This is when he came up with his Chopsticks and Bowl weapon set, as he was a very public person.
He also had his own drunken style/sets that he incorprated into Hak Fu Mun along with his own unique Monkey sets. Hak Fu Mun while containing a Iron Wire (Tit Kid Suen) (sp) set, it's not identical in any way to Hung Kuens. So it leads you to believe it was either altered or not from Hung Kuen at all. I myself haven't learned our Iron Wire set, but my sifu says it's much more martial in intent and application than Hung Kuens. I know that other sister styles of Hung Kuen like Hung Fut and Jow Gar have Iron Wire sets also, which don't look like Hung Kuens, atleast to my experience.
Ross, If you know more could you please share any info you have on the subject? Many of us are only trying to tie large gaps together, we may not have first hand information like you in some cases. So what may seem silly to you, might be the only bits of theroy we have.
jeff